Methods for converting used oil into fuel

Abstract

Methods for converting used oil into fuel generally include forming a conversion mixture of an alcohol and a base, and adding the conversion mixture to used oil, such as used motor oil, to form a reaction mixture. The methods can also include adding a high nitrate compound and an amino acid to the reaction mixture and ozonizing the reaction mixture. The result of the methods can include a three phase system in which the bottom phase is asphalt oil, the middle phase is diesel fuel or jet fuel, and the top phase is sulfuric acid. The three phases can be separated to obtain the final diesel fuel or jet fuel product.

What is claimed is: 
     
       1. A method for converting used motor oil to diesel fuel or jet fuel, the method comprising:
 mixing an alcohol and a base to form a conversion mixture, the base being a base suitable for weakening and/or breaking bonds in hydrocarbon chains of the used oil and which cancels out acidic components of the used oil; 
 adding the conversion mixture to used motor oil to form a reaction mixture; 
 heating the reaction mixture to a temperature of between 200° F. and 400° F. for a period of between 1 hour and 3 hours; 
 cooling the reaction mixture to a temperature less than 70° F.; 
 adding a high nitrate compound to the reaction mixture; 
 adding an amino acid to the reaction mixture; 
 ozonizing the reaction mixture; and 
 separating the reaction mixture into sulfuric acid, diesel fuel or jet fuel, and asphalt oil.